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Watchmaker profile

Richard Lange

Richard Lange advanced precision-watch design and proposed beryllium-containing balance-spring alloy work, recorded under patent 529945. 2

House history places the alloy idea and patent application in 1930; do not confuse application with publication/grant or claim sole invention of later commercial alloys.

At a glance

Place
Germany

The watchmaking story

A useful place to start with Richard Lange's work is Metal alloy for watch springs, patent 529945. 2

Richard Lange acquired, revived or owned A. Lange & Söhne from 1868. 4

Scope: Direct watchmaking

Why this person is included

Documented original work

Background and working context

Affiliations and workshops: A. Lange & Söhne 2

Geographic ties: Germany. Documented workplace / industry location

Brands, workshops, and other relationships

  1. Watch brand / watchmaking business · Source-verified — continuation 2

    A. Lange & Söhne — Acquired / revived / owned From 1868. Co-owner of the family business 4

    Became a co-owner of his father’s company in 1868.

    Dates only where explicitly supported; source describes historical relationship, not current employment.

Evidence and limitations

This dossier connects 4 field-specific evidence records with 4 public sources. Known links only; full career not established

Claim qualifications (4)
  • Noteworthy contribution: Patent number established by house history; original patent still requires a separate audit. 2
  • Representative work: Patent number established by house history; original patent still requires a separate audit. 2
  • Affiliations / workshops: Patent number established by house history; original patent still requires a separate audit. 2
  • Specific role: Patent number established by house history; original patent still requires a separate audit. 2

Sources

  1. A. Lange & Söhne — HistoryWikipedia · Encyclopedia / tertiary · Not stated

    [S0130] Wikipedia. "A. Lange & Söhne — History." Not stated. https://en.wikipedia.org/wiki/A._Lange_%26_S%C3%B6hne Accessed 2026-09-13.

    Source context

    Relationship to subject: Tertiary compilation

    How it was checked: Page opened; relevant text read

    Limitation: Historical identity summary; primary-source corroboration is a priority. Corporate current-status fields are not used.

  2. Richard and Emil Lange – rise and global renownA. Lange & Söhne · First-party / official · Not stated

    [S0159] A. Lange & Söhne. "Richard and Emil Lange – rise and global renown." Not stated. https://www.alange-soehne.com/eu-en/manufacture/heritage/richard-and-emil-lange Accessed 2026-09-13.

    Source context

    Relationship to subject: House or maker associated with subject

    How it was checked: Page opened; relevant text read

    Limitation: Page summary groups both brothers in 1868, but detailed text gives Richard 1868 and Emil 1871. Use detailed chronology.

  3. https://en.wikipedia.org/wiki/A._Lange_%26_S%C3%B6hne https://www.alange-soehne.com/eu-en/manufacture/heritage/richard-and-emil-langelinked source
  4. A. Lange & Söhne is rebornA. Lange & Söhne · First-party / official · Not stated

    [S0160] A. Lange & Söhne. "A. Lange & Söhne is reborn." Not stated. https://www.alange-soehne.com/eu-en/manufacture/heritage/a-lange-sohne-is-reborn Accessed 2026-09-13.

    Source context

    Relationship to subject: House or maker associated with subject

    How it was checked: Page opened; relevant text read

    Limitation: First-party account; not independent corroboration of promotional or priority claims.

Corrections and stronger evidence

Names, dates, and workshop relationships can change as archives are digitised. If you have a primary source that clarifies this record, use the correction process.

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